The tank was the next to last in a row of forty of the great cylinders, nestled side by side. A parallel deck of sixteen huge tanks lay about sixty kilometers "overhead" linked to this collection by six strong cables. Twenty meters away from where I stood, one of the half-inch polymer tethers rose from its anchor point, a mirror-bright streak toward the planet overhead.

Sometimes a careful observer could make out B Deck without aid -- a tiny rectangle about an eighth the apparent diameter of the moon -- against the bright bulk of the Earth. When we crossed the terminator, the tanks in Group B sparkled like gems in Terra's sunset tiara.